模态

The tire modal test and its application to the tire structure design were analysed,and a tire modal analysing test system was established.

分析了轮胎模态分析的试验方法及其在轮胎设计中的应用，并建立了轮胎模态分析试验系统。

A modal value analysis method is presented to obtain a reduced-order dynamic model with modal coordinates for structures with small damping or without damping.

针对小阻尼和无阻尼结构，提出了一种模态价值分析方法，用于在模态坐标下的动力学模型降阶问题。

Through elaborating theoretical basis of modal analysis,the value is researched about standard simple-supported damaged beam so as to find out the influence of different damage position on beam vibration modal and their correlation.

通过论述模态分析技术的理论基础，并对标准简支损伤梁振型的数值研究，可揭示出不同损伤位置对梁振动模态的影响，从而提出一种桥梁损伤诊断的新思路。

Based on a simple and applicable method for sensitivity analysis, the updating parameters were determined such as material, cross shape and size of the main loading rods in the rig derrick. The optimal updating function was established according to the residual differential value between testing modal parameter and theoretical modal parameter.

依据简单实用原理，利用灵敏度分析方法确定了井架结构主要承载杆件的材料、截面形状和几何尺寸为待修正参数；以试验模态参数和理论模态参数之间的残差最小值构建优化修正函数，利用一阶搜索优化算法对待修正参数进行了优化和状态评估。

Present a kind of paraconsistent modal logics PML by generalizing classical modal logics'truth value set from {0, 1} to [0, 1] , propose new logical consequence relationships by generalizing fuzzy implications in PML, introduce sound and complete Gentzen style inference systems in PML. 9. Global properties of valid formulas are the necessary conditions that must be satisfied by valid formulas.

8将经典模态逻辑公式的值域从{0，1}扩充到[0，1]，结合模糊逻辑推理关系的研究结果，建立了能处理不一致知识的模态逻辑，并给出其可靠而且完备的Gentzen型推理系统。

Based on past achievements about this topic ,use the linguistics and logic theory and method to study the peculiarity of Probabilistic modality logics in modern chinese .

本文在前人研究的基础上，运用逻辑学和语言学的研究方法和成果，着重探讨或然模态逻辑和模态概念在现代汉语中的特点。

Having determined the response of each vibration mode to the excitation, it is necessary to obtain the response of the structure by combining the effects of each vibration mode.

已经确定了每个振动模态对激励的响应之后，可通过综合每个振动模态的响应效果来获得结构的响应。

It concludes that the mode of the linear pe-riodic time-varying vibration system is complex mode and isperiodically time-varying .

通过研究发现，线性周期时变齐次系统的模态不仅具有复模态的性质，而且为周期时变性。

To validate the proposed method, numerical simulation and a vibration mode test of a cantilever beam are completed, where the mass varies continuously with time.

为验证方法的有效性，进行了数字仿真和附加质量随时间连续变化的悬臂梁的模态分析试验，试验结果和理论结果比较，表明了提出的线性时变系统的模态参数识别方法有效、可行。

This paper studies on the fluctuating pressure time-history identification with the background of this system, and the fluctuating wind pressure on the roof of Shenzhen citizen center is identified. In this paper, we do some research in mechanics on the proper orthogonal decomposition method.

本文对荷载本征模态分解法进行了机理性研究，对不同的插值方法、不同的结构体形以及选择不同阶数的模态进行风压识别对识别结果的影响进行了细致的分析。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。